The Doppler Effect and Sonic Booms
Sound barrier
Thrust SSC (SuperSonic Car)
Thrust SSC -over the sound barrier ! Video
Supersonic car targets 1,000mph
X-34A Hypersonic Plane - Mach 10 - 10,600 kilometers per hour
Supersonic transport
Congress Shoots Down Hypersonic Plane
SR-71 Blackbird